Important - MMIS POSC AWS Technical Information Please Forward This Message to the Technical Team Within Your Organization Immediately

REMINDER: MassHealth will migrate its Medicaid Management Information System (MMIS) base application and Provider Online Service Center (POSC) to an Amazon Web Services (AWS) data center in early December. MassHealth intends to cutover to AWS Friday 12/6/2024 through Monday morning 12/9/2024. If a contingency date is necessary, MassHealth expects to cutover to AWS the following weekend.

Important Technical Changes:

• Effective Monday, December 9, MassHealth will re-direct all MMIS POSC and point-to-point transactions received from MassHealth Providers to AWS.

• At a provider’s discretion, on or after Monday, December 9, organizations may bookmark the following URL to access the POSC in the AWS environment: https://mmis-portal.ehs.state.ma.us/EHSProviderPortal

• If your organization requires a modification to your network to facilitate access to MassHealth’s AWS, please use the following IP Addresses. There are 2 to support redundancy:

15.197.248.41

35.71.150.175

What Do You Need to Do: Please ensure the following:

• Please plan your operational needs around this cutover timeframe (12/6/2024 - 12/9/2024) as the MMIS POSC will be unavailable during cutover weekend. MassHealth will provide more information regarding the cutover of key services in the coming weeks.

• Ensure that your internal staff and business partners are aware of the cutover and are planning around the cutover accordingly. 

• Confer with your technical team to inform them of the migration. If your organization needs to make any network adjustments to facilitate access to AWS on or after Monday, December 9, please begin to address this issue immediately.

• You do NOT need to make any adjustments to the way you exchange transactions with MassHealth as the functionality in the MMIS POSC is NOT changing.

• Continue to monitor MassHealth communications leading up to the cutover for important pre and post cutover information.

MassHealth will continue to keep you informed as the agency moves closer to the cutover date so that your organization can continue to prepare. If you have any questions regarding this AWS migration notification, please contact MassHealth:

LTSS providers, please contact the LTSS Provider Service Center at (844) 368-5184 or support@masshealthltss.com.

All other providers, please contact MassHealth at (800) 841-2900 or provider@masshealthquestions.com.